Journal
JOURNAL OF APPLIED PHYSICS
Volume 109, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3579446
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- PNCDI [540/2008]
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This study highlights the diode laser-based measurements of the aluminum transition S-2(1/2) -> P-2(1/2) at 394.401 nm, which is affected by hyperfine structure splitting caused by nuclear-spin coupling and by the Zeeman effect. If the external magnetic field is strong enough, the nuclear-spin IJ coupling breaks down, whereas the Zeeman splitting continues to be ruled by the JS coupling. The diode laser-based measurements show this departure from aluminum transition IJ coupling for magnetic fields higher than 0.1 T. In this case, the line profile is affected by Doppler broadening and a large Zeeman splitting (higher than Doppler FWHM) and it can be solved by tunable diode-laser induced fluorescence measurements. The theoretical Zeeman splitting ruled by the JS coupling at high magnetic fields (0.1-0.4 T) was successfully verified while comparing the magnetic field, measured by Zeeman splitting and the Hall probe in the same elementary volume. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3579446]
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